Help-recommend a quiet air cleaner that won't interfere with AM Radio
 

Please Help
I own the Sharper Image Ionic Breeze,
but need to get rid of it, because it creates so much AM radio interference
(even down the hall) I can't listen to AM radio anymore.

Because of Asthma, we have to use an Air Purifier
The Ionic Breeze does seem to help,
but I need it to replace it with something that won't create
the Major AM Radio Interference that the Sharper Image Ionic Breeze does.

The requirements are this.
1. it must Clean at least as well as the Ionic Breeze ( this should be easy)
2, It must be Very Quiet (this will be harder to match)
3. It Can't cause Major AM Radio Interference.
4. it should be fairly economical to run ( I hope)
5. it should be fairly inexpensive to buy.
6. If your ownly recommendation is a whole house system, which one is
cheapest?

Thanks in advance